French plante invention lead-acid batteries in 1859, has experienced nearly 150 years development course, lead-acid battery in terms of theoretical research, the species and varieties of products, product electrical performance, etc got great progress, both in transportation, communications, electric power, military and in the field of navigation, aviation economies, Lead-acid batteries have played an indispensable role. According to the structure and use of lead-acid battery, the battery can be roughly divided into four categories: 1, start lead-acid battery; 2, power lead-acid battery; 3, fixed valve controlled sealed lead-acid battery; 4, other categories, including small valve-controlled sealed lead-acid battery, mine lamp lead-acid battery, etc.

A single cell lead acid battery has a nominal voltage of 2.0V and can discharge up to 1.5V and charge up to 2.4V. In applications, six single cell lead acid batteries are often connected in series to form a nominal 12V lead acid battery. There are 24V, 36V, 48V and so on.
The main features
Security seal
In normal operation, the electrolyte will not leak from the terminals or housing of the battery. No free acid
Special suction screens keep the acid in. There is no free acid inside the cell, so the cell can be placed anywhere.
Frustrated system
When the battery pressure exceeds the normal level, the VRLA battery will release excess gas and automatically re-seal to ensure that there is no excess gas in the battery.
Simple maintenance
Because the gas compounding system converts the generated gas into water, no water is required during the use of VRLA batteries.
Long service life
VRLA batteries with corrosion-resistant lead-calcium alloy bars can float for 10 to 15 years.
Stable quality and high reliability
Using advanced production technology and strict quality control system, VRLA battery has stable quality and reliable performance. Voltage, capacity and seal are checked 100% on line.
Safety certification

All VRLA batteries are UL certified.

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